diff --git a/day1_introduction/1_welcome+login/jupyter4hpc_welcome+introduction.pdf b/day1_introduction/1_welcome+login/jupyter4hpc_welcome+introduction.pdf
index 0e95350841f9de447b498dda09c435ab161c9134..1ed00e5b0b194a6bcd8e43ffdae4bc71380a1b64 100644
Binary files a/day1_introduction/1_welcome+login/jupyter4hpc_welcome+introduction.pdf and b/day1_introduction/1_welcome+login/jupyter4hpc_welcome+introduction.pdf differ